The purpose of this study was to review the ways to resolve school violence increased nowaday in our society through physical education classes and after-school sport programs. The role of school physical education and after-school program to prevent school violence need to be emphasized not on retroactive approach but on proactive prescription, since traditional school physical education in the past has underlined acquisition of skills, competition and product-based assessment, those of which have rather had chances to spark confrontation. Therefore, this study suggests the followings; Firstly, teamwork needs to be highlighted to foster the community spirit. Restoration of the community spirit is also conducive to a number of students`` bystander attitude. Secondly, the importance of fair-play in sport should be ingrained and taught to be performed. Thirdly, the senses of cooperation, challenge and persistence should be instilled into school physical education curriculum and after-school sport programs. Forth, not only acquisition of knowledge and skills but also integration of incoming knowledge and skills with others needs to valued. Time for reflection and contemplation of what one does in the physical education class and the after-school sport program as well as what one learns gives learners opportunities to digest incoming information and to develop desirable characters.